998,021 in words
998,021
nine hundred and ninety-eight thousand and twenty-one
998,021 is written nine hundred and ninety-eight thousand and twenty-one.
Ways to write it
- As an ordinal
- nine hundred and ninety-eight thousand and twenty-first
- Expanded form
- 900,000 + 90,000 + 8,000 + 20 + 1
Place value
| Place | Digit | Value |
|---|---|---|
| hundred thousands | 9 | 900,000 |
| ten thousands | 9 | 90,000 |
| thousands | 8 | 8,000 |
| hundreds | 0 | 0 |
| tens | 2 | 20 |
| ones | 1 | 1 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Composite
- Factors
- 1, 61, 16,361 and 998,021 (4 factors)
- First 10 multiples
- 998,021, 1,996,042, 2,994,063, 3,992,084, 4,990,105, 5,988,126, 6,986,147, 7,984,168, 8,982,189, 9,980,210
- Square
- 998,021 × 998,021 = 996,045,916,441
- Square root
- ≈ 999.01
- Sum of the digits
- 9 + 9 + 8 + 0 + 2 + 1 = 29
- Rounded to the nearest 10
- 998,020
- Rounded to the nearest 100
- 998,000
- Rounded to the nearest 1000
- 998,000
- Number before
- 998,020
- Number after
- 998,022
- In binary
11110011101010000101
Quick check
What number comes just after 998,021?
Show the answer
998,022
Is 998,021 even or odd?
Show the answer
Odd
What is 998,021 + 10?
Show the answer
998,031
Practise with a game
Factors, Multiples & Primes
Multiples, factors, prime numbers, square numbers and prime factors.
Number Patterns
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How do you write 998,021 in words?
998,021 is written "nine hundred and ninety-eight thousand and twenty-one".
Is 998,021 a prime number?
No. 998,021 is a composite number, because it has more than two factors.
What are the factors of 998,021?
The factors of 998,021 are 1, 61, 16,361 and 998,021.